Question

mention the condition under which charges can move in a conductor.name the divice which is used to maintain this condition in an electric circuit

Answer 1

charge can flow in a conductor only when there is a potential difference between two points in a circuit.

potential difference causes charge to flow.

And,we can maintain potential difference in circuit with the help of a battery or cell.

Hope it helps!

Answer 2

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Charge can move in a conductor only when a potential difference is maintained between it's ends .

A cell or a battery is used to maintain potential difference and hence , there is a flow of electric charges in an electric circuit .

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